Mine came in today. It fit the K and N equally well, I see no reason to produce two versions. I tried it on a K22 and a mod 58.

The tail end of my adapter was not centered on the grip frame. Looking at the copper tabs, one is just a hair higher than the other, and I think this lets it twist just a bit when the grip screw was tightened down. I am going out of town, but when I have time, I will work the tabs down so that they are uniform top to bottom, and think this will take care of it.

Thanks for taking this own. HOPE YOU GET RICH doing it.

Charlie